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ludmilkaskok [199]
2 years ago
13

Help I don't understand how to do this

Mathematics
1 answer:
klasskru [66]2 years ago
5 0

Answer:

Step-by-step explanation:

Given

Points (-1,7) and (1,3)

Formula

m = (y2 = y1) / (x2 - x1)

y2 = 7

y1 = 3

x2 = - 1

x1 = 1

Solution

m = (7 - 3) / (-1 - 1)

m = 4 / - 2

m = - 2

Now use either one of the points to get b in y = mx + b

x = 1

y = 3

m = - 2

y = mx + b

3 = -2 (1) + b

3 = -2 + b

b = 3 + 2

b = 5

Equation: y = - 2x + 5

Second question.

y = -2 + 1  

Think money. You have a dollar in your pocket, but you owe your mom 2 dollars. Where are you.

y = -2 + 1

y = - 1

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I am having a hard time with this page if someone can help me i will appreciate it a lot!!
Allisa [31]

Answer:

#1 is It could be another girl or it could be a boy

#2 is Its could be another boy or it could be a girl.

The diagram should look like this:

BB. BG

GB GG

#4 is 4

#5 is 1

#6 is there is 1/2 a change the baby can be a girl and a 1/2 change the baby can be a boy. For both of them to be girls; it would be 1/4 chance.

5 0
3 years ago
If the car wheel rotates 5 times per second about how many miles does the car travel in one hour??
iVinArrow [24]

Answer:

18000

Step-by-step explanation:

If we want to find how many miles it travels in one hour, we need to find jow many seconds are in one hour because as the problem said, it's wheel rotates 5 times per second.

there are 3600 seconds in an hour, so we multiply 3600 by 5, and we get 18000.

The car travels 18000 miles in one hour.

8 0
3 years ago
Help plz asap i need this for an unit grade plz help
Paraphin [41]

Answer:D

Step-by-step explanation:fsdgffdsfsdfsfdsf

6 0
3 years ago
What is the length of the second base of a trapezoid if the length of one base is 27 and the length of the mid-segment is 19? sh
stira [4]
Length of the mid-segment = (long base + short base) / 219 = (27 + short base) / 219 - (27 / 2) = short base / 2Multiplying both sides by 238 -27 = short baseshort base = 11
Source:http://www.1728.org/quadtrap.htm


3 0
3 years ago
Read 2 more answers
How much fencing would you need to fence in a rectangular storage that measures 40 feet x 20 feet?​
Monica [59]

Answer:

Ammount of fencing required = perimeter of the rectangular storage.

Perimeter of a rectangle = 2(l+b), where l = length, b = breadth.

so perimeter = 2(40+20) = 2(60) = 120 feet

so fencing required = 120 feet

HOPE IT WAS HELPFUL!

3 0
3 years ago
Read 2 more answers
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